infix dictionary using ghettos.dat {
 year       1-  2
 statefip   3-  4
 gq         5-  5
 perwt      6-  9
 age       10- 12
 sex       13- 13
 bpld      14- 18
 ancest1g  19- 21
 yrimmig   22- 24
 educrec   25- 25
 empstatd  26- 27
 wkswork1  28- 29
 uhrswork  30- 31
 incwage   32- 37
}


